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| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // This file contains utility functions for dealing with the local | 5 // This file contains utility functions for dealing with the local |
| 6 // filesystem. | 6 // filesystem. |
| 7 | 7 |
| 8 #ifndef BASE_FILE_UTIL_H_ | 8 #ifndef BASE_FILE_UTIL_H_ |
| 9 #define BASE_FILE_UTIL_H_ | 9 #define BASE_FILE_UTIL_H_ |
| 10 | 10 |
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| 96 // absolute paths before doing the comparison. | 96 // absolute paths before doing the comparison. |
| 97 bool ContainsPath(const FilePath& parent, const FilePath& child); | 97 bool ContainsPath(const FilePath& parent, const FilePath& child); |
| 98 | 98 |
| 99 // Deprecated compatibility function. Use FilePath::InsertBeforeExtension. | 99 // Deprecated compatibility function. Use FilePath::InsertBeforeExtension. |
| 100 void InsertBeforeExtension(FilePath* path, const FilePath::StringType& suffix); | 100 void InsertBeforeExtension(FilePath* path, const FilePath::StringType& suffix); |
| 101 | 101 |
| 102 // Deprecated compatibility function. Use FilePath::ReplaceExtension. | 102 // Deprecated compatibility function. Use FilePath::ReplaceExtension. |
| 103 void ReplaceExtension(FilePath* file_name, | 103 void ReplaceExtension(FilePath* file_name, |
| 104 const FilePath::StringType& extension); | 104 const FilePath::StringType& extension); |
| 105 | 105 |
| 106 // Replaces characters in 'file_name' that are illegal for file names with | |
| 107 // 'replace_char'. 'file_name' must not be a full or relative path, but just the | |
| 108 // file name component. Any leading or trailing whitespace in 'file_name' is | |
| 109 // removed. | |
| 110 // Example: | |
| 111 // file_name == "bad:file*name?.txt", changed to: "bad-file-name-.txt" when | |
| 112 // 'replace_char' is '-'. | |
| 113 void ReplaceIllegalCharacters(std::wstring* file_name, int replace_char); | |
| 114 | |
| 115 // Returns true if file_name does not have any illegal character. The input | |
| 116 // param has the same restriction as that for ReplaceIllegalCharacters. | |
| 117 bool IsFilenameLegal(const string16& file_name); | |
| 118 | |
| 119 //----------------------------------------------------------------------------- | 106 //----------------------------------------------------------------------------- |
| 120 // Functions that involve filesystem access or modification: | 107 // Functions that involve filesystem access or modification: |
| 121 | 108 |
| 122 // created on or after the given |file_time|. Doesn't count ".." or ".". | 109 // created on or after the given |file_time|. Doesn't count ".." or ".". |
| 123 // | 110 // |
| 124 // Note for POSIX environments: a file created before |file_time| | 111 // Note for POSIX environments: a file created before |file_time| |
| 125 // can be mis-detected as a newer file due to low precision of | 112 // can be mis-detected as a newer file due to low precision of |
| 126 // timestmap of file creation time. If you need to avoid such | 113 // timestmap of file creation time. If you need to avoid such |
| 127 // mis-detection perfectly, you should wait one second before | 114 // mis-detection perfectly, you should wait one second before |
| 128 // obtaining |file_time|. | 115 // obtaining |file_time|. |
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| 483 #elif defined(OS_POSIX) | 470 #elif defined(OS_POSIX) |
| 484 typedef struct { | 471 typedef struct { |
| 485 FilePath filename; | 472 FilePath filename; |
| 486 struct stat stat; | 473 struct stat stat; |
| 487 } DirectoryEntryInfo; | 474 } DirectoryEntryInfo; |
| 488 | 475 |
| 489 // Read the filenames in source into the vector of DirectoryEntryInfo's | 476 // Read the filenames in source into the vector of DirectoryEntryInfo's |
| 490 static bool ReadDirectory(std::vector<DirectoryEntryInfo>* entries, | 477 static bool ReadDirectory(std::vector<DirectoryEntryInfo>* entries, |
| 491 const FilePath& source, bool show_links); | 478 const FilePath& source, bool show_links); |
| 492 | 479 |
| 493 // Comparison function to neatly sort directory entries | |
| 494 static bool CompareFiles(const DirectoryEntryInfo& a, | |
| 495 const DirectoryEntryInfo& b); | |
| 496 | |
| 497 // The files in the current directory | 480 // The files in the current directory |
| 498 std::vector<DirectoryEntryInfo> directory_entries_; | 481 std::vector<DirectoryEntryInfo> directory_entries_; |
| 499 | 482 |
| 500 // The next entry to use from the directory_entries_ vector | 483 // The next entry to use from the directory_entries_ vector |
| 501 size_t current_directory_entry_; | 484 size_t current_directory_entry_; |
| 502 #endif | 485 #endif |
| 503 | 486 |
| 504 DISALLOW_EVIL_CONSTRUCTORS(FileEnumerator); | 487 DISALLOW_COPY_AND_ASSIGN(FileEnumerator); |
| 505 }; | 488 }; |
| 506 | 489 |
| 507 class MemoryMappedFile { | 490 class MemoryMappedFile { |
| 508 public: | 491 public: |
| 509 // The default constructor sets all members to invalid/null values. | 492 // The default constructor sets all members to invalid/null values. |
| 510 MemoryMappedFile(); | 493 MemoryMappedFile(); |
| 511 ~MemoryMappedFile(); | 494 ~MemoryMappedFile(); |
| 512 | 495 |
| 513 // Opens an existing file and maps it into memory. Access is restricted to | 496 // Opens an existing file and maps it into memory. Access is restricted to |
| 514 // read only. If this object already points to a valid memory mapped file | 497 // read only. If this object already points to a valid memory mapped file |
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| 546 | 529 |
| 547 // Renames a file using the SHFileOperation API to ensure that the target file | 530 // Renames a file using the SHFileOperation API to ensure that the target file |
| 548 // gets the correct default security descriptor in the new path. | 531 // gets the correct default security descriptor in the new path. |
| 549 bool RenameFileAndResetSecurityDescriptor( | 532 bool RenameFileAndResetSecurityDescriptor( |
| 550 const FilePath& source_file_path, | 533 const FilePath& source_file_path, |
| 551 const FilePath& target_file_path); | 534 const FilePath& target_file_path); |
| 552 | 535 |
| 553 } // namespace file_util | 536 } // namespace file_util |
| 554 | 537 |
| 555 #endif // BASE_FILE_UTIL_H_ | 538 #endif // BASE_FILE_UTIL_H_ |
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